000 00332nam a2200121Ia 4500
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041 _aAS
100 _a"CRESSWELL, John W "
245 0 _aResearch design: qualitative and quantitative approaches
260 _b"London: SAGE, 1994"
300 _a192 p.; 21 cm
650 _aPENELITIAN
999 _c66010
_d66009